珍しい (mezurashii) conjugation
unusual, rare
珍しい (めずらしい, mezurashii) is an i-adjective. I-adjectives carry their own tense: drop the final い and the endings attach straight to the stem. No だ, no です needed to make a complete sentence.
Conjugation table
| Form | Plain (casual) | Polite (~です) | When you use it |
|---|---|---|---|
| Dictionary / plain | 珍しい mezurashii | 珍しいです mezurashiidesu | The form you look up. Also the casual “is ~”. |
| Negative | 珍しくない mezurashikunai | 珍しくないです mezurashikunaidesu | “is not ~”. |
| Past | 珍しかった mezurashikatta | 珍しかったです mezurashikattadesu | “was ~”. |
| Past negative | 珍しくなかった mezurashikunakatta | 珍しくなかったです mezurashikunakattadesu | “was not ~”. |
| Te-form | 珍しくて mezurashikute | — | Links to the next clause: “~ and …”. |
| Adverb | 珍しく mezurashiku | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 珍しい〜 mezurashii〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 珍しければ mezurashikereba | — | “if it is ~”. |
| Conditional (~たら) | 珍しかったら mezurashikattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 珍しくなる mezurashikunaru | 珍しくなります mezurashikunarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 珍しすぎる mezurashisugiru | 珍しすぎます mezurashisugimasu | “too ~”. |
| Looks ~ (~そう) | 珍しそう mezurashisou | 珍しそうです mezurashisoudesu | “looks / seems ~” from appearance. |
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Why it conjugates this way
I-adjectives carry their own tense: drop the final い and the endings attach straight to the stem. No だ, no です needed to make a complete sentence.
See the full rules in the adjective conjugation guide.